Word Problems
Coach Alex wanted to create 2 groups of his 16 players. Is 16 an even or odd number?
Even
What is the repeated addition equation for the array below?
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&&&&&
5 + 5 = 10
OR
2 + 2 + 2 + 2 + 2 = 10
Is the number even or odd?
9
Use pictures, numbers, or words to prove your answer.
Odd
4 + 4 + 1 = 9
Which expressions will have an even sum?
6 + 8
9 + 1
3 + 4
2 + 1
6 + 8 = 14 (even + even = even)
9 + 1 = 10 (odd + odd = even)
Cierra has 3 rows of books. Each row has 5 books. How many books does Cierra have? Use pictures, numbers, or words.
3 + 3 + 3 + 3 + 3 = 15
or
5 + 5 + 5 = 15
What is the repeated addition equation for the array below?
#####
#####
#####
5 + 5 + 5 = 15
OR
3 + 3 + 3 + 3 + 3 = 15
Is the number even or odd?
10
Use pictures, numbers, or words to prove your answer.
Even
5 + 5 = 10
Which expressions will have an odd sum?
7 + 2
9 + 4
1 + 1
8 + 2
7 + 2 = 9 (odd + even = odd)
9 + 4 = 13 (odd + even = odd)
Ms. Honey wanted to arrange the desks into 4 rows of 5. If she has 22 students, will she have enough desks? Use pictures, numbers, or words.
She will not have enough because 4 rows of 5 makes only 20 total.
What is the number sentence for this array?
&&
&&
&&
&&
4 + 4 = 8 or 2 + 2 + 2 + 2 =8
John has an odd number of hats. Which number of hats could John have? Choose all correct answers.
12
15
8
11
23
15 - 7 + 7 + 1 = 15
11 - 5 + 5 + 1 = 11
23 - 11 + 11 + 1 = 23
Julian has 12 toy cars. What are TWO different ways he could create an array with his toy cars?
Show on your write board AND write a repeated addition sentence/equation that matches.
Arrays will vary
What is the number sentence for this array?
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@@
@@
@@
4 + 4 = 8
OR
2 + 2 + 2 + 2 = 8
Ava said the number 14 is even because if she paired 14 objects, there are none left over.
Jordan said 14 is even because he could separate 14 items into two equal groups with 7 items in each group.
Who is correct?
Who is correct?
They are both correct because you could use either strategy to figure out if a number is even.
7 + 7 = 14
2 + 2 + 2 + 2 + 2 + 2 + 2 = 14
A 2nd Grade class arranged their cups into an array. If there are 24 students in the class, how could they have arranged the cups? Draw the array and write the repeated addition for your array.
Answers may vary
What is the repeated addition equation for this array?
XXXX
XXXX
XXXX
XXXX
4 + 4 + 4 + 4 = 16
Coach Annie wanted her 17 girls to play tug of war. Is 17 odd or even? Prove your answer with pictures, numbers, or words.
Odd
8 + 8 + 1 = 17